Type-writing machine.



PATENTED JULY 14, 1908.

T. J. REED. TYPE WRITING MACHINE.

APPLICATION rum AUG. 13, 1907 mm D T. WM A TNE5EEE=.

-1-l|5 ATTURNEY arrangements of Fig. 4 is an enlarged Bridgeport, in

. struction and ing the accidental detachment of t the stop travels therewith as in "tlhliTED STATEE THOMAS I. REED, OF BRIDGEPORT, CONNECTICUT,

COMPANY, OF JERSEY-CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

@ FFTCE.

ASSIGNOR T0 UNTON TYBEW MITEjl} TYPE-WRKTING MACHINE.

Application filed August 13,

To all whom it may concern:

Be it known that I, THOMAS J. Benn, citizen of the United States, State of Connecticut, have invented certain new and useful Improvements .in Type- VVritin'g Machines, of which the following is a specification.

My invention relates to carriage stop mechanism for typewriting machines and more particularly to tabulator stop devices.

One object of my invention is to provide simple step devices that are strong in conthatefficiently resist the shock on the sto and yet in which the stop occupies but litt e space, may be readily ad justed on the carriage and is not expensive to manufacture.

A further objectof my invention is to provide simple and efficient means for prevente stops from f stop bar.

To the above and other ends which will hereinafter more clearly appear, my invention consists of the features of construction,

arts and combinations of devices to be set f drth in the following specification and particularly pointed out in the appended claims.

In the drawings, Figure 1 isa detail fragmentary top plan view showing the stop bar with the stops mounted in place thereon, a cooperating stop, and means for mounting the stop bar in lace on the machine.- Fig. 2 is an enlarge detail transverse sectional view taken. through the stop bar on the line :c-a; of Fjg. 3 and looking in the direction of the arrow at said line. Fig. 3 is an enlarged detail front elevation showing a portion of bar and a stop mounted inplace thereon, the view showing the parts as seen from the direction of-the arrow 0 in Fig. 2. detail sectional view of being taken on the line the parts, the section the direction of 'y-y of Fig. 2 and looking in the arrow at said line.

The stop bar 1 may be secured to arms 2 machine or from the carriage. In the presried by; arms which are intended to be se l cured to the carriage so that the stop bar the No. dRe nington Specification of Letters Yatent.

and resident of the county of Fairlield and l tween. the teeth. which pro ect either from the frame ref the of Fig. 4 it will be seen teeth. It will be Patented Jul 14, race.

1907. Serial No. assess.

machine. gular in cross section as shown in Fig. 2 and maybe provided with the usual sci le on the top of the bar as indicated in Fig. 1. The bar is provided with teeth 3, a on opposite sides thereof, the teeth 3 being on the rear side of'the bar and the teeth 4 on the front sidethereof. Each of these teeth is beveled or inclined on one face 5 and is abrupt or at right-angles to the axis of the bar on the oposite'iface 6 thereof. The inclined or beveled faces 5 of the teeth on opposite sides of the ban are on opposite sidesof the teeth; thus the bevel of each of the teeth 3 is situated on the righthand side of the tooth,

whereas the bevel or inclinedface of each tooth l is on the left-hand sidethereof. The

purpose of this particular arrangement of the teeth. will be hereinafter explained. Detachable column stops 7 are preferably made of sheet metal and each forms a plate-like bifurcated stop which is adapted to straddle the The wall of the opening 10 on the i arm 8 is beveled at 1.1 to match the beveling i of the teeth 3 on the rear of the rod, whereas the flat face 12 of the stop co-acts with the abrupt sides of the teeth. The opposite wall of the opening 10 on the arm 9 of the stop has an oppositely disposed beveled face 13 to match the bevels of the teeth 4, the

straight or flat side 14 ofthe stop co-acting with the abrupt faces of the teeth 4. The walls of the opening 10 are therefore shaped to form'teeth which. match and co-act with the teeth on opposite sides of the stop bar. By beveling tl engaging walls of the column stops and the teeth of the stop bar in the manner described I am enabled to make the column stops of heavier stuff and to provide a stronger construction than where square teeth are formed on the stop rod to receive the plate-like bifurcated column stops be- Thus from an inspe tion that the distance roin tooth to that of ,11 adthe abrupt face of one jacent tooth indicated by the dotted mes a,

between two I), may be taken the distance observed hat in the present instance the column stop 18 of such thicksisting the impact of body portion 16 of which is situated against ness as to occupy most of the space between these two lines and that nevertheless the teeth are not weakened, but that on the contrary the base of the tooth also occupies most of the space between'the lines a, l). The effect of this construction, therefore, is to provide strong and durable stop devices which efficiently resist the impact on the columnstops.

By beveling the teeth. on opposite sides of the stop bar on opposite faces thereof and correspondingly b'eveling the engaging portions of the column stops, I attain a still further advantage in resisting the impact on the column stops, as will appear from the follow-' ing description. The arm 8 of each stop 7 co acts with the cooperating stop 15 so that when the stop 15 is projected into the path of the stop 7 as shown in'Figs. 1 and 4, theimpact on the stop 7 will be resisted by the abrupt faces of the engaged teeth on opposite sides of. the stop bar co-acting with the flat faces 12 and 14 of the stop, and there is no tendency of the co-acting beveled faces of the stop and stop bar teeth to displace the column stops or to spread the bifurcated arms 8, 9 thereof apart, the flat face of the engaged tooth on the rear side of the bar re the stop in one direction and the flat face of the engaged tooth on the front of: the bar resisting the impact of the stop in an opposite direction. of the impact comes on the abrupt face of one of the teeth 4 and on the abruptface of one of the teeth 3, none of said force coming on the inclined faces of the teeth. It will be seen, therefore, that I have provided simple strong and efficient stop devices, each of the stops being formed. of a single piece of sheet metal and yet efficiently resisting the impact thereon. v

In order to provide against the accidental displacement of the column stops from the stop bar I have provided a retalning device which is, in the nature of a wire spring, the

one face of the column stop on the arm 9 thereof and extends in a plane parallel to the plane of the stop. The ends of the wire spring are bent at right angles to the body portion thereof and are projected through.

The force a ertures 17 which extend through the plateliiqe stop and the extreme terminalportion 18' of the wire are bent over against the opp-o site face of the stop in erder to secure saiu l wire in place on the at The body portion 16 of the spring is formed intermediate the 1 ends thereof with a bend which forms a pro-- f jection 19 adapted to engage beneath a con ner or edge 20 of the stop bar as shown in This edge of the bar is in. effect a corner of one of the teeth engaged by the stop which carries the spring as indicated in Fig. 4. p The projection 19 engages under the v corner of the tooth. in the manner described and prevents the column stop from being accidentally displaced transversely of the bar, and yet enables it to be readily removedwhen desired in order to-change the position of the stop along the bar, the spring wire yielding when the stop is forced on or off of the bar.

' Various changes may be made without departing from the spirit and scope of my invention.

What I claim as'new and by Letters Patent, is

1. In a carriage stop construction for typewriting. machines, the combination of a stop bar having teeth on op osite sides thereof; each tooth an abrupt face, the positesldes .of the posed, and a stop with teeth shaped'to engage in the openings between the teeth on said bar.

'2. In a carriage stop constructrn for typewriting machines, the combination of a stop bar having teeth onoppositesides there of, each tooth having a beveled face and an. abrupt face, the bevels of the teeth on 'opposite sides of the bar being. oppositely disposed and a detachable bifurcated stop, the walls of the bifurcation forming teeth which fit and are received in the spaces between the teeth on opposite sides of the stop rod.

3. In a carriage stop construction for typewriting machlnes, the combination of a stop bar having teeth on opposite sides thereof,- each tooth having a beveled face and an abrupt face, the bevels of the teeth on opposite sides of the bar being o positely'disf posed and a sheet metal detac able stop bifurcated to straddle said stop bar, opposite walls of the opening in the stop formed by the bifurcation matching the teeth on opposite sides of thestop bar.

a. In carriage stop construction for typewriting machines, the combination of a stop bar having teeth on opposite sides thereof, each tooth having a beveled face and an abrupt face, the bevels of the teeth on opposite sides/of the bar being oppositely disposed and a flat-metal plate-like detachable stop of a single thickness of metal with teeth. thereon which match the teeth on opposite sides of the stop bar.

5. In a carriage stop construction for typewriting machines, the combination of a stop bar having teeth, a flat plate-like stop detachably secured to said step bar, and a spring secured to said stop and projecting from one of the flat sides thereof and engaging directly under one edge or corner of the bar to prevent an accidental detachment of the stop from the bar.

6-. In a carriage stop pilSlZI'UCtIOIl for typewriting machines, the combination of a stop bar having teeth, a stop detachably secured'to said stop bar, and a spring secured desire to secure bevels of the teeth on o having a beve ed face and I typewriting machines,

' gage in stop at both ends to said stop and having a pro ection intermediate its ends, SQ-lClJJIOjQCbiOIl engaging under one edge or corner of the bar to prevent the accidental detachment of the stop from the bar.

,7 In' a carriage stop construction for typewriting machines, stop barhaving teeth, a stop detachably secured to said stop bar, said stop having perforations therein, and a Wire spring secured at its ends in said perforations and having an intermediate portion which. engages said stop bar and prevents the accidental displacement of the stop from the bar.

. 8. In a carriage stop construction for typewriting machines, the combination of a I stop bar having teeth, aiflat plate-like sheetmetalstop bifurcated to straddle said bar and engage the teeth thereon, and a spring which is connected to said stop and projects from one of the flat sides thereof, the body of the spring extending in a plane parallel to the plane of the stop and directly engaging the bar to pgevent accidental displacement of the stop om the bar.

9. In a carriage stop construction for stop bar having teeth, a plate-like sheet metal stop bifurcated to straddle saidbar and engage the teeth thereon, and a spring which is connected to said stop at one side thereof, the body of the spring extending in a plane parallel to the plane of the stop and having a projection formed by a bend in the spring, said projection engaging under a corner or edge'of the bar and preventing an accidental displacement of the stop from the bar.

' 10. In a carriage top construction for typewriting machines, the combination of a stop bar having teeth on opposite sides thereof, each tooth having a beveled face and an abrupt face, the bevels of the teeth on opposite sides of the bar being oppositely disposed, a stop with teeth shaped to enthe openings between the teeth on said bar, and a spring carried by said stop and engaging under the corner of one of the engaged teeth on said bar to prevent an accidental displacement of the stop from said bar.

11. In a carriage stop construction for typewriting machines, the combination of a bar having teeth on opposite sides thereof, each tooth having a beveled face and an abrupt face, the bevels of the teeth on opposite sides of the bar being oppositely disposed, a sheet metal plate-like detachable stop bifurcated opposite walls of the opening in the stop formed by the bifurcation matching the teeth on opposite sides of the stop bar, and a spring secured to' said stop and having its bod portion extending in a plane parallel 'to t e plane of the stop and engaging under the cornerof one ofthe engaged teeth on said the combination of a the combination of a to straddle said stop bar,

bar to prevent the accidental displacement of the stop from the bar.

12. In a carriage stop construction for typewriting machines, the combination of a stop bar, having teeth on opposite sides thereof, each tooth having a beveled face and an abrupt face, the bevels of the teeth on opposite sides of the bar being oppositely disposed, a sheet-metal detachable stop bifurcated to straddle said stop bar, opposite walls of the opening in the stop formed by the bifurcation matching the teeth on opposite sides of the stop bar, and a spring secured at both ends to said stop and having a projection intermediate its ends, said projection engaging under one edge or corner of an engaged tooth on the bar and preventing an accidental detachment of the stop from the bar. I

13. In a carriage stop construction for typewriting machines, the combination of a stop bar having teeth on opposite ,sides thereof, eachtooth having .a beveled face and an. abrupt face, the bevels of the teeth on opposite sides of the bar being oppositely disposed, a sheet metal detachable stop bifurcated to straddle said stop bar, opposite walls of the opening in the stop formed by the bifurcation matching the teeth on opposite sides of the stop bar, said stop having perforations therein, and a wire spring secured at its ends insaid perforation and having an intermediate portion which engages one of the engaged teeth on the stop bar and prevents an accidentaldisplacement of the stop from the bar.

14. In a carriage stop construction for typewritin machines, the combination of a stop bar aving teeth on opposite sides thereof, each tooth having a beveled face and an abrupt face, the bevels of the teeth on opposite sides of the bar being oppositely disposed, a sheet metal plate-like detachable stop bifurcated to straddle said stop bar, opposite walls of the opening in the stop formed by the bifurcation matching the teeth on oposite sides of the stop bar, the abrupt faces of the engaged teeth on the bar resisting the shock on the stop, and a wire spring secured at its ends-in perforations in said stop and the body portion of the spring being situated in a plane parallel with the plane of the stop and having a projection formed by a bend in the spring, said projection engaging under a corner of one of the engaged stop bar and reventing an accidental displacement of t e stop from the bar.

Si ned at Bridgeport, in the county of Fairlield, and State of Connecticut, this 7th day of August A. D. 1907 THOMAS, J. REED.

teeth of the 

